Water-heater.



H. s. HUMPHHEY.

WATER HEATER. APPIJIOATION FILED r113 24, 11108.

998,004. 1 Patented July 18,1911.

3 SEEETS-SHEET 1.

an'uzulipz H; s. HUMPHREY.

WATER HEATER. I

APPLIOATION FILED T16R24, I908.

Patented July 18, 1911.

s SHEETS-SHEET 2.

H, HUIFIEFHREY,

WATER APPLICATION rum) P181314, 1908.

998,004,! Patentg. 18, 1911.

' EEETSSHEET 3.

' "Heaters; of'w'h-i'cli' the following'is a.='spec1-";

NT FFIGE.

' n nhsn n'r s; numrfim'mior mnimhzoo; mI'cHi sA-m Be it -known thz'i-t-I, S. :HUM-

new and -usef'ulz;Improvenientsin lVaterfilms-invention relatestoiinprov'ements in ete eat l The main objepts of i-thisiinventioxr are:

' First, tejprovidefari-im roved waterheatr mostat.v a

, .structuraldetails; will; defiiiit'el appear amoun Whieh' is adaptedto quic'kly' and -automati-- supply; hot water; which nuay: be opergerattea street re of theclass described in whi ch hy jather i thegasburners' are controlled Further objects; obie'cts" 110' a'ccomflish thezqbjegi's of nylinvention. .bytheideV1ces.-and .descr1bed"in thefollowing-specification.

The invention is clearly defined and point ed out in the claims. l

A structure embodyingQth e features of .my invention'is clearljillustrated. in the accompanying drawin forming apart of 'F gll '1e 1-1sa detail side elevation ofa structure embodying. the features of my'invention, 'p ordzions being brokenzaw aly to show 1 thearran ementof-the'parts. ,Fi '.--2--isi anenlarged etailvertical section t' on-a.line.-oorrespon ingk-to line; 2 -2-3of :Fig; 1,- portions bein brrangement o .the parts; F ig. .3;.i's-an'.en-

en away to show the arlai'ged'detail s'ection,.ta ken one linecorresponding to; line. of Fig 2; showing details of the eircula'tionvalv'e',' -.-th e .valve Qitsel-f bein .shownin-lines's Eigwtis anenlarged etail'- taken ona lineicorres onding toline 4'-4 oil-Fig. 2;the valve 20 in'g,

shownnin full-lines,;andin .its' closed ositi'on"; -F, ig. 5-;isl adetail vertic l sectlon through the circulationg-valve showing,structural details thereof.- Fig; 6 is an en- Third to; provide: an"iinpfo ved swe ten imam Patent; Patented Jul 18; 1911-;lfiplieatioh'flled lebruary' 24,- 1908. Seria1'No. 417,3f14I largeddetail vertical sectiexktaken on a'line.

corresponding to line 66- of Fig. 3.1

Inthe drawing, thesectional views are taken loolting in the direction ofthe little arrows at the ends of the section lines, and similarnumerals: of reference refer to similar. parts throughout the several.views.

Referring. to the drawing, 1 represents the heating coi yahfd 13 theburners. The water inlet 4 forthejheater is preferably controlled theautoxnaticvalve 5; which controls the delivery from the water myply 6;The water; inlet valveis preferab y casing o f iinproved water heater;2' thethe t)tpe of'swa'ter 'ivalveshown in Letters Paella-N e19102issued to me an- Ma 35tli. 1'905; beingf anautomatic water and to; ope'mtli'e" vstveb'y' the" rod or' 'ste m 9,: 'sOthat tlre geeva lte is:automatically openedby-1 the-water valve The-twitter valve put 611 ,22is actuated by 3 the water;\ as stated; and itj ri turn actuat'e's.the-gas valve-23 ;through" the valve stems 9.

lj'rht-spling. 24 returns lhe' pistes 22 to its '.i1iit1al position, andthe- 25 returns "gasjvalve: gas supply 7 is eon-- 11907, Serial No.

theg'asvalve. The'aiixiliary-fgas valve26i v i's held normally theseat-by the spring 27,.jiiid' is held. oiienwhen' the "ternpera tu r'eof; tlie'lwa'ter is be theI thermostat-'11,: one member of which acts.on the valve through the levers 29 ai1d30 (see' Fi'g. These parts arenot described in further detail herein. as they form no. part of mypresent invention.

Iil-lustrate at-12 in a conventional form agdra'w ofi; faucet for theheater discharge ow a predetermined point,

When thef aixcet; is opened,or water sup'pl; ipe-.6 opens the ,waterinlet uve 5,

and through its} conxiect'ioh' 'with the gas valve admits the gasto theburhers, 'a suit} able pilot as 13 being provided so that'the burnersare automatically ignited. The incon'iin 1' water passes through thewater inlet '4-. o the heater down throu h the heater and qufi'throu'ghthe heater disc arge 10 and closed by means of the thermostat. When thefaucet or draw-61f cock 12 is closed, the pressure equalizes and the.valve "is automatica'lly closed. In order to permit the cir-- ,culationofwater through the heater, when no water isbeing drawn ofi therefrom, I

' provide .a circulation or return pipe 14, I which connects thedischarge of the heater I to the inlet, so that the water'circulatesthrough the discharge pipe and thermostat tube 21 to the return orcirculation pipe 14, thence to the inlet 4:, and through'the heater,thus circulating pastthe thermostat, which controls the gas valve andmaintains the water in the heater at a predetermined or.

approximately at a predetermined tempera-.

ture.

,;In order to control the inlet and the return hor circulation pipe, Iprovide a circulation member 15 closesT be valve ,preferablyconsistingof the valve member 15,'which isxadapted, when closed, to seat upwardlyagainst the seat 16, thereby closing the circulation or return pipe. The

valve member 15 is provided with a'down- .wardly-projec'ting stem 17, onwhich the inlet valvemember 18 is slidably mounted.=

-Between the valve members 15 and 18 I arrange a spring 19. -;The valvemembers 15 and 18 are so ,1 arrangedthat the valve ore the valve member18 opens, and vice 'versa; the-spring 19 being compfessedwhenthe valvemember 18 is opened y. the incoming water. By this arrangement I securein a simple and effective manner an automatic valve which efiec- 'tivelycontrols the circulation. I show one form of this circulation feature inmy 00-,

- pending case hereinbefore referred to,--in which the circulationvalve. is controlled dir'ectly by the water inlet valve, and I presentclaims broadly to the .circulation feature in that application. Thisform ofmy invention, however, has certain advantages in regard to thearrangement and. location of the parts, and is the embodiment ofmyinvention' preferred by'me where a storage tank or extensive circulatingsystem, such as Ihave indicated in conventional form in my saidco-pending application before referred to, is

not desired. a

The valve 20, shown in detail in Fig. 4, is

adapted to control the discharge of the heater,that is, it may beadjusted to control the quantity of water drawn on during any given timeit being intended that this shall be shut 01% according to the capacityof the heater.

I have illustrated and described my invention in detail in the form preferred by me on account of structural slmplicity and economy. I am,however, aware that it is capable of-considerable variation instructural details without departing from my invention.

Having thusjdescribed my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. The combination with a water heater, of a as burner therefor; a gasvalve arrange to controlsaid burner; a water inlet for said heater; anautomatic water inlet valve arrangedtoopen said gas valve; a

water discharge for said heater; a thermo-- stat connected to said gasvalve; :1 return or, circulation connection for said water discharge andwater inlets; an automatic circulation valve comprising a circulationvalve member, said circulation valve member 'havingadownwardly-projecting stem, an inlet valve member slidably mounted onthe stem of said circulation valve member, and a springinterposedbetween said valve members, said circulation valve memberbeing adapted to close before said inlet valve member is opened and viceversa.

.-2. ,The combination with a water heater, of a gas burner therefor; agas valve arranged to control said burner; a water inlet for saidheater; an automatic water inlet' valve arranged-to open said gas valve;a water dischargeior said heater; a thermo- "stat connected to saidvalve; a return or circulation connection for said water dischargeand-water inlets; an automatic circulation-valve comprising acirculation valve member, an inlet valve member, and a spring finterpoed between's'aidvalve members, said circ'ulat on'valvemember beingadapted to close before. said inlet valve member is opened and viceversa.

3. The combination with a water heater,

of a gas L burner therefor; a gas valve ar ranged to control saidburner; a water inlet for sa d heater; an automatic water 1n- --letvalve arranged to open said gas valve;

:1 water discharge for said heater; a thermostat connected to said gasvalve; a return or' circulation connection for said water discharge andwater inlets; an automatic circulation valve comprising a circulationvalve member, said circulation valve member having adownwardly-projecting stem, and an inlet valve member slidably mountedon the stem ofsaid circulation valve member, said circulationvalvememb'er being adapted to close before said inlet valve member isopened and vice versa.

4. The combmat on with awater heater,

close before said inlet, valve member is opened and vice versaL- Thecombination with a Water heater, of a gas burner therefor; a gas valvearranged to control said burner; a water in.- let for said heater; anautomatic water inlet valve arranged to open said gas valve;

a Water" discharge for said heater; a return or circulation connectionfor said Water discharge and water inlets; an automatic circulationvalve comprising a circulation valve member, an inlet valve member, anda spring interposed between said valve members, said circulation. valvemember being adapted to close before said inlet valve member is openedand vice versa.

6. The combination with a Water heater, of a gas burner therefor; a gasvalve an ranged to control said burner; a Water inlet for said heater;an automatic Water inlet valve arranged to open said gas valve; a Waterdischarge for said heater; a return or circnlat'i on connection for saidWater discharge and Water inlets; an automatic circulation valvecomprising acirculation valve member, said circulation valve memberhaving a stem, and an inlet valve member slidably mounted on the stem ofsaid circulation valve member, said circulation valve member beingadapted to close before said inletvalve member is opened and vice versa.In witness whereof, I have hereunto set my hand and seal in the presenceof tvvo witnesses.

HERBERT S. HUMPHREY. [L. 8.] Witnesses LUELLA G. GREENFIELD, PHINAlVooDRUFF;

